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    Academic Journals

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• Observations of bromine monoxide transport in the Arctic sustained on aerosol particles

  Authors:Peter K. Peterson, Holger Sihler, Johannes Zielcke, Stephan General, Ulrich Platt, William R. Simpson, et al.From:Atmospheric Chemistry and Physics (Vol. 17, Issue 12) Peer-Reviewed

  June 22, 2017337 words Brief article, Repor... The return of sunlight in the polar spring leads to the production of reactive halogen species from the surface snowpack, significantly altering the chemical composition of the Arctic near-surface atmosphere and the...

• Multi-satellite sensor study on precipitation-induced emission pulses of NO.sub.x from soils in semi-arid ecosystems

  Authors:Marloes Penning de Vries, Steffen Beirle, Holger Sihler, Patrick R. Veres, Jonathan Williams, and Thomas WagnerFrom:Atmospheric Chemistry and Physics (Vol. 16, Issue 14) Peer-Reviewed

  July 29, 2016349 words Brief article We present a top-down approach to infer and quantify rain-induced emission pulses of NO.sub.x ( ≡  NO + NO.sub.2 ),...

• Total column water vapour retrieval from S-5P/TROPOMI in the visible blue spectral range.

  Authors:Christian Borger, Steffen Beirle, Steffen Dörner, Holger Sihler, and Thomas WagnerFrom:Atmospheric Measurement Techniques (Vol. 13, Issue 5) Peer-Reviewed

  May 28, 2020436 words Article Total column water vapour has been retrieved from TROPOMI measurements in the visible blue spectral range and compared to a variety of different reference data sets for clear-sky conditions during boreal summer and...

• The STRatospheric Estimation Algorithm from Mainz (STREAM): estimating stratospheric NO.sub.2 from nadir-viewing satellites by weighted convolution

  Authors:Steffen Beirle, Song Liu, Marloes Penning de Vries, Andrea Pozzer, Holger Sihler, Pieter Valks, et al.From:Atmospheric Measurement Techniques (Vol. 9, Issue 7) Peer-Reviewed

  July 4, 2016220 words Brief article The STRatospheric Estimation Algorithm from Mainz (STREAM) determines stratospheric columns of NO.sub.2  which are needed for the retrieval of tropospheric columns from satellite observations. It is based on...

• Is a scaling factor required to obtain closure between measured and modelled atmospheric O.sub.4 absorptions? An assessment of uncertainties of measurements and radiative transfer simulations for 2 selected days during the MAD-CAT campaign

  Authors:Thomas Wagner, Steffen Beirle, Nuria Benavent, Tim Bosch, Ka Lok Chan, Sebastian Donner, et al.From:Atmospheric Measurement Techniques (Vol. 12, Issue 5) Peer-Reviewed

  May 14, 2019587 words Author abstract, Bri...

  In this study the consistency between MAX-DOAS measurements and radiative transfer simulations of the atmospheric O.sub.4 absorption is investigated on 2 mainly cloud-free days during the MAD-CAT campaign in Mainz,...

• How big is an OMI pixel?

  Authors:Martin de Graaf, Holger Sihler, Lieuwe G. Tilstra, and Piet StammesFrom:Atmospheric Measurement Techniques (Vol. 9, Issue 8) Peer-Reviewed

  Aug. 4, 2016392 words Brief article The Ozone Monitoring Instrument (OMI) is a push-broom imaging spectrometer, observing solar radiation backscattered by the Earth's atmosphere and surface. The incoming radiation is detected using a static imaging CCD...

• In-operation field-of-view retrieval (IFR) for satellite and ground-based DOAS-type instruments applying coincident high-resolution imager data

  Authors:Holger Sihler, Steffen Beirle, Martin de Graaf, Johannes Lampel, Marloes Penning de Vries, Julia Remmers, et al.From:Atmospheric Measurement Techniques (Vol. 10, Issue 3) Peer-Reviewed

  Mar. 9, 2017417 words Brief article Knowledge of the field of view (FOV) of a remote sensing instrument is particularly important when interpreting their data and merging them with other spatially referenced data. Especially for instruments in space,...

• Time-dependent 3D simulations of tropospheric ozone depletion events in the Arctic spring using the Weather Research and Forecasting model coupled with Chemistry (WRF-Chem).

  Authors:Maximilian Herrmann, Holger Sihler, Udo Frieß, Thomas Wagner, Ulrich Platt, and Eva GutheilFrom:Atmospheric Chemistry and Physics (Vol. 21, Issue 10) Peer-Reviewed

  May 20, 2021345 words Brief article Tropospheric bromine release and ozone depletion events (ODEs) as they commonly occur in the Arctic spring are studied using a regional model based on the open-source software package Weather Research and Forecasting...

• Horizontal and vertical structure of reactive bromine events probed by bromine monoxide MAX-DOAS

  Authors:William R. Simpson, Peter K. Peterson, Holger Sihler, Johannes Lampel, Ulrich Platt, Chris Moore, et al.From:Atmospheric Chemistry and Physics (Vol. 17, Issue 15) Peer-Reviewed

  Aug. 4, 2017404 words Author abstract, Bri... Heterogeneous photochemistry converts bromide (Br.sup.-) to reactive bromine species (Br atoms and bromine monoxide, BrO) that dominate Arctic springtime chemistry. This phenomenon has many impacts such as...

• MICRU: an effective cloud fraction algorithm designed for UV-vis satellite instruments with large viewing angles.

  Authors:Holger Sihler, Steffen Beirle, Steffen Dörner, Marloes Gutenstein-Penning de Vries, Christoph Hörmann, Christian Borger, et al.From:Atmospheric Measurement Techniques (Vol. 14, Issue 6) Peer-Reviewed

  June 2, 2021420 words Article Clouds impact the radiative transfer of the Earth's atmosphere and strongly influence satellite measurements in the ultraviolet-visible (UV-vis) and infrared (IR) spectral ranges. For satellite measurements of trace...

• Seasonal variation of tropospheric bromine monoxide over the Rann of Kutch salt marsh seen from space

  Authors:Holger Sihler, Steffen Beirle, Marloes Penning de Vries, Ulrich Platt, and Thomas WagnerFrom:Atmospheric Chemistry and Physics (Vol. 16, Issue 20) Peer-Reviewed

  Oct. 21, 2016316 words Brief article The Rann of Kutch (India and Pakistan) is one of the largest salt deserts in the world. Being a so-called "seasonal salt marsh", it is regularly flooded during the Indian summer monsoon. We present 10 years...

• The tilt effect in DOAS observations

  Authors:Johannes Lampel, Yang Wang, Andreas Hilboll, Steffen Beirle, Holger Sihler, Ulrich Platt, et al.From:Atmospheric Measurement Techniques (Vol. 10, Issue 12) Peer-Reviewed

  Dec. 12, 2017367 words Author abstract, Bri... 970LExperience of differential atmospheric absorption spectroscopy (DOAS) shows that a spectral shift between measurement spectra and reference spectra is frequently required in order to achieve optimal fit results, while...

• Parameterizing the instrumental spectral response function and its changes by a super-Gaussian and its derivatives

  Authors:Steffen Beirle, Johannes Lampel, Christophe Lerot, Holger Sihler, and Thomas WagnerFrom:Atmospheric Measurement Techniques (Vol. 10, Issue 2) Peer-Reviewed

  Feb. 23, 2017277 words Brief article The instrumental spectral response function (ISRF) is a key quantity in DOAS analysis, as it is needed for wavelength calibration and for the convolution of trace gas cross sections to instrumental resolution. While it...

• On the contribution of chemical oscillations to ozone depletion events in the polar spring

  Authors:Maximilian Herrmann, Le Cao, Holger Sihler, Ulrich Platt, and Eva GutheilFrom:Atmospheric Chemistry and Physics (Vol. 19, Issue 15) Peer-Reviewed

  Aug. 13, 2019230 words Author abstract, Bri...

  This paper presents a numerical study of the oscillations (or recurrences) of tropospheric ozone depletion events (ODEs) using the further-developed one-dimensional KInetic aNALysis of reaction mechanics with...